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Home > Catalan's constant

or equivalently

Its numerical value is approximately

K = .915 965 594 177 219 015 054 603 514 932 384 110 774 ...

It is not known whether K is rational or irrational.

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Topics: Catalan's Constant 594 Occasionally 915 774 932 Combinatorics...

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Catalan languageCatalan Catal Valenci is a Romance language spoken by approximately 12 million people in a territory called the Catalan countries which spans portions of Spain, France, Andorra and Italy, although the majority of Catalan speakers are in Spain. Classificat CatalanCatalan can mean: the Catalan language Eugene Charles Catalan the mathematician inhabitant of Catalonia There is also information on Catalan names. Catalan's constantCatalan's constant ''K which occasionally appears in estimates in combinatorics, is defined by : or equivalently : Its numerical value is approximately K . 915 965 594 177 219 015 054 603 514 932 384 110 774. It is not known whether K is rational or irrat Catalan's conjectureCatalan's conjecture is a simple conjecture in number theory that was proposed by the mathematician Eugene Charles Catalan. To understand the conjecture notice that 23 8 and 32 9 are two consecutive powers of natural numbers. Catalan's conjecture states t Catalan numberThe Catalan numbers named after the Belgian mathematician Eugene Charles Catalan (1814—1894), form a sequence of natural numbers that occur in various counting problems in combinatorics. The n''th Catalan number is defined by : (see binomial coefficient). Catalan CompanyThe Oriental Catalan Company or the Grand Company, was founded by Roger de Flor (who inspired the medieval tale of Tirant lo Blanc) after the Peace of Caltabellotta in 1302 had left jobless the soldiers from Catalonia and Aragon fighting against the Frenc Catalan alphabet Catalan Countries Catalan nationalism Catalan grammar Catalan myths and legends Catalan literature Catalan mythology about witches Catalan solid Catalan phonology and orthography